2667897191 has 2 divisors, whose sum is σ = 2667897192. Its totient is φ = 2667897190.

The previous prime is 2667897181. The next prime is 2667897241. The reversal of 2667897191 is 1917987662.

2667897191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2667897191 - 2¹⁴ = 2667880807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2667897131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333948595 + 1333948596.

It is an arithmetic number, because the mean of its divisors is an integer number (1333948596).

Almost surely, 2^2667897191 is an apocalyptic number.

2667897191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667897191 is an equidigital number, since it uses as much as digits as its factorization.

2667897191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 56.

The square root of 2667897191 is about 51651.6910758980. The cubic root of 2667897191 is about 1386.9358153809.

The spelling of 2667897191 in words is "two billion, six hundred sixty-seven million, eight hundred ninety-seven thousand, one hundred ninety-one".